This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Suppose a miracle car has a 100 efficient engine and burns fuel having an energy content of 40 MJ/L. ... (Read 14 times)

tfester

  • Hero Member
  • *****
  • Posts: 534
on: Jul 29, 2018
Suppose a miracle car has a 100 efficient engine and burns fuel having an energy content of 40 MJ/L. If all resistant forces on this car traveling at highway speeds is 1000 N, what is the overall limit in distance per liter driven on the highway?
 
  A) 30 km
  B) 40 km
  C) 50 km
  D) more than 50 km
  E) not enough information

Question 2

An elevator suspended by a vertical cable is moving downward but slowing down. The force that the cable exerts on the elevator must be
 
  A) greater than the force that Earth exerts on the elevator.
   B) less than the force that Earth exerts on the elevator.
   C) equal to the force that Earth exerts on the elevator.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

orangecrush

  • Sr. Member
  • ****
  • Posts: 350
Reply #1 on: Jul 29, 2018
Answer to Question 1

Great help.

Answer to Question 2

A


tfester

  • Hero Member
  • *****
  • Posts: 534
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


orangecrush

  • Sr. Member
  • ****
  • Posts: 350
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

A Prototype Hydrogen Fuel Cell Car A Prototype Hydrogen Fuel Cell Car
A typical fuel-pressure regulator that has a spring that exerts 46 pounds of force against the ... A typical fuel-pressure regulator that has a spring that exerts 46 pounds of force against the ...
A fuel-pressure graph after key on, engine off (KOEO) on a TBI system. A fuel-pressure graph after key on, engine off (KOEO) on a TBI system.
Canada's energy stream Canada's energy stream
Wind energy Wind energy
How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C
Video: Red Blood Cells - Erythropoietin (EPO)

For a complete list of videos, visit our video library